Unfortunately in the last couple of decades manners and professional courtesy have gone out the window. I listen to my younger collegues talk to business contacts on the phone, and many of them sound very unprofessional.
I blame in part our need for instant gratification, which has been made worse by technology, for the way people act sometimes in public.
Kathy, your son handled himself with dignity and great restraint, he is more of what we need in this society, so a round of applause is in order.